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本文介绍的简单脉冲转换器的边界条件处理是将两个变截面管段看作两个锥形管模型。计算中考虑了气体在脉冲转换器变截面管段中流动时传热、摩擦及变截面等因素的影响。因此,两个变截面管段的长度对计算精度不会产生较大的影响,而重要的是简单脉冲转换器分支边界可按普通分支边界处理,从而不存在简单脉冲转换器边界方程系迭代收敛困难的问题。计算时间也比原脉冲转换器程序缩短了大约一半。
The boundary conditions for the simple pulse converter described in this article deal with the two tapered pipe sections as two tapered pipe models. In the calculation, the influence of heat transfer, friction and cross-section on the gas flow in the variable cross-section pipe section of the pulse converter is considered. Therefore, the length of the two pipe sections with variable cross section will not have a significant impact on the accuracy of the calculation. What is important is that the simple pulse converter branch boundary can be treated as a normal branch boundary so that there is no iterative convergence difficulty of the simple pulse converter boundary equation The problem. The calculation time is also reduced by about half compared to the original pulse converter program.